551656155602 has 16 divisors (see below), whose sum is σ = 830423444760. Its totient is φ = 274848602112.

The previous prime is 551656155601. The next prime is 551656155613. The reversal of 551656155602 is 206551656155.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 549865257841 + 1790897761 = 741529^2 + 42319^2 .

It is not an unprimeable number, because it can be changed into a prime (551656155601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4432658 + ... + 4555410.

Almost surely, 2^551656155602 is an apocalyptic number.

551656155602 is a deficient number, since it is larger than the sum of its proper divisors (278767289158).

551656155602 is a wasteful number, since it uses less digits than its factorization.

551656155602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130717.

The product of its (nonzero) digits is 1350000, while the sum is 47.

The spelling of 551656155602 in words is "five hundred fifty-one billion, six hundred fifty-six million, one hundred fifty-five thousand, six hundred two".